1 /*
2  * Copyright (c) 2024 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef ROSEN_RENDER_SERVICE_BASE_ANIMATION_RS_ANIMATION_RATE_DECIDER_H
17 #define ROSEN_RENDER_SERVICE_BASE_ANIMATION_RS_ANIMATION_RATE_DECIDER_H
18 
19 #include "common/rs_common_def.h"
20 #include "modifier/rs_modifier_type.h"
21 #include "rs_frame_rate_range.h"
22 
23 namespace OHOS {
24 namespace Rosen {
25 class RSRenderPropertyBase;
26 using FrameRateGetFunc = std::function<int32_t(RSPropertyUnit, float)>;
27 using PropertyValue = std::shared_ptr<RSRenderPropertyBase>;
28 
29 class RSB_EXPORT RSAnimationRateDecider {
30 public:
31     RSAnimationRateDecider() = default;
32     ~RSAnimationRateDecider() = default;
33 
SetEnable(bool enabled)34     void SetEnable(bool enabled)
35     {
36         isEnabled_ = enabled;
37     }
38     void SetScaleReferenceSize(float width, float height);
39     void Reset();
40     void AddDecisionElement(PropertyId id, const PropertyValue& velocity, FrameRateRange range);
41     void MakeDecision(const FrameRateGetFunc& func);
42     const FrameRateRange& GetFrameRateRange() const;
43 private:
44     int32_t CalculatePreferredRate(const PropertyValue& property, const FrameRateGetFunc& func);
45     int32_t ProcessVector4f(const PropertyValue& property, const FrameRateGetFunc& func);
46     int32_t ProcessVector2f(const PropertyValue& property, const FrameRateGetFunc& func);
47     int32_t ProcessFloat(const PropertyValue& property, const FrameRateGetFunc& func);
48 
49     bool isEnabled_ = true;
50     float scaleWidth_ = 0.0f;
51     float scaleHeight_ = 0.0f;
52     FrameRateRange frameRateRange_;
53     std::unordered_map<PropertyId, std::pair<PropertyValue, FrameRateRange>> decisionElements_;
54 };
55 } // namespace Rosen
56 } // namespace OHOS
57 
58 #endif // ROSEN_RENDER_SERVICE_BASE_ANIMATION_RS_ANIMATION_RATE_DECIDER_H